[R] Gray levels in plot

[Christian Hennig]

Dear list,

is there a way to set the gray levels in a scatterplot? I want to make
some plots for a b/w journal and the dataset is so large that I need
pch="." for all points. As I understand the command gray(), it generates
colors from prespecified gray levels. Are these the gray levels which
appear again if I plot with col=gray(level), save as postscript and print
with a b/w printer? Or can the gray levels be given to plot directly somehow?
(R 1.3.0 on Solaris)

Thank you,
Christian

***********************************************************************
Christian Hennig
University of Hamburg, Faculty of Mathematics - SPST/ZMS
 (Schwerpunkt Mathematische Statistik und Stochastische Prozesse,
 Zentrum fuer Modellierung und Simulation)
Bundesstrasse 55, D-20146 Hamburg, Germany
Tel: x40/42838 4907, privat x40/631 62 79
hennig at math.uni-hamburg.de, http://www.math.uni-hamburg.de/home/hennig/
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ich empfehle www.boag.de


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